I agree with ZZ
In a joint family,if women are in large nos.and united ,a simple hearted male will be bullied like anything.Bechara mard!
You have my deepest sympathies.
It's advisable to meet a counsellor and tell her your problems.She/he will advise you how to deal with such people.There are many reputed NGOs that give free counselling by trained sympathetic counsellors, to victims under distress.If you can afford it,you may also visit a reputed clinical psychologist who will help you out.
Although I have never advised this earlier,and don't even know if this advice is right,you may join SIFF and tell them your problem.They deal with harassed husbands.Maybe they also help you out,even if you are unmarried.
If they can help you,submit in writing all your complaints.